The Rodenstock Apo-Sironar Digital 55mm Lens is designed to be used with computer equipments and digital camera backs of large formats camera. It enhances the technical possibilities of digital camera backs and computer equipments to produce more brilliant and sharper prints.

• The apochromatic design of the Rodenstock 55mm F4.5 Apo Grandagon Lens results in lower color aberration
• Every element of these Rodenstock Lenses are constructed in a way to avoid digital image color “fringing”
• The Rodenstock Apo-Sironar Digital 55mm Lens accepts slim or wide angle 67mm threaded filters of all brands
• The CCD image sensor requires  high light and higher diffraction, which has made f/11 and f/8 as ideal working apertures
• These lenses come in 73.8 x 80mm dimensions and weighs only 0.8 lbs along with copal 0 shutter
  

Lens: 55 mm f/4.5
Max. recommended film format: 72x96 mm
Shutter size: 0
Push-on mount Ø: 70 mm
Filter thread: M 67 × 0.75
Rear barrel Ø: 60 mm
Flange focal length: 67.6 mm
Flange focal end : 32 mm
Overall length: 73.8 mm
Weight w/Copal: 400 g
Shutter type and size: Copal 0
Shutter speeds range: B, T, 1/500 s … 1 s
Manual cocking: Yes
Self cocking: No
Mechanical: Yes
Electronic: No
x-synchronized: Yes
Screw thread: M 32.5 × 0.5
Lens board opening: 34.8 mm
Lens board thickness: 1.5 … 4.0 mm
Image scale: 1: infinity
Working f-stop: 8-11
Image angle: 95°
Image circle diameter: 125 mm
Movement range (vertical/horizontal) 37x49 mm: 39/35
                                                                         36x56 mm: 38/32
                                                                         40x54 mm : 36/32
                                                                          46x58 mm : 32/29
                                                                          72x88 mm : 8/7
                                                                           72x96 mm : 4/3